Financial Instruments and Fair Value Measurements - Additional Information (Detail) $ in Millions, $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2021 AUD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stockholders' equity	$ 8,188	$ 8,188			$ 7,582
Foreign Exchange Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimates of net derivative losses related to cash flow hedges included in Accumulated other comprehensive loss	1	1
Cross currency interest rate derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value of derivative	280	280
Estimates of net derivative losses related to cash flow hedges included in Accumulated other comprehensive loss	(5)	(5)
Cross currency interest rate derivatives | Other , net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain from discontinued cash flow hedges	5	7
Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimates of net derivative losses related to cash flow hedges included in Accumulated other comprehensive loss	5	5
Cash Flow Hedging | Accounting Standards Update 2017-12 | Cumulative Effect, Period of Adoption, Adjustment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stockholders' equity						$ 5
Cash Flow Hedging | Foreign Exchange Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value of derivative	11	$ 11
Cash Flow Hedging | Foreign Exchange Contract | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Term of contract		1 year
Cash Flow Hedging | Interest Rate Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value of derivative				$ 300
Fair Value Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value of derivative	70	$ 70
Fair Value Hedging | Accounting Standards Update 2017-12
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Adjustments increased the carrying value of long-term debt	$ 0	0
Amount recognized in earnings for ineffective portion of derivative instruments designated as cash flow hedges		$ 1	$ 0